DocumentLoader::isCommittedButEmpty is timing-dependent.

Source/web/tests/DocumentLoaderTest.cpp

Index: Source/web/tests/DocumentLoaderTest.cpp
diff --git a/Source/web/tests/DocumentLoaderTest.cpp b/Source/web/tests/DocumentLoaderTest.cpp
index e4b69d77a0f9ec3692708608c734ff456d7b5141..b243d7bb56b8f949b3eb16cb4c9c90d1cb4b0ffe 100644
--- a/Source/web/tests/DocumentLoaderTest.cpp
+++ b/Source/web/tests/DocumentLoaderTest.cpp
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "config.h"
+#include "core/loader/DocumentLoader.h"
 
 #include "platform/testing/URLTestHelpers.h"
 #include "public/platform/Platform.h"
@@ -168,4 +169,11 @@ TEST_F(DocumentLoaderTest, MultiChunkWithReentrancy)
     m_webViewHelper.reset();
 }
 
+TEST_F(DocumentLoaderTest, isCommittedButEmpty)
+{
+    FrameTestHelpers::WebViewHelper webViewHelper;
+    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad("about:blank", true);
+    EXPECT_TRUE(toLocalFrame(toCoreFrame(webViewImpl->mainFrame()))->loader().documentLoader()->isCommittedButEmpty());
+}
+
 } // namespace blink